208463897 has 2 divisors, whose sum is σ = 208463898. Its totient is φ = 208463896.

The previous prime is 208463891. The next prime is 208463903. The reversal of 208463897 is 798364802.

It is a balanced prime because it is at equal distance from previous prime (208463891) and next prime (208463903).

It can be written as a sum of positive squares in only one way, i.e., 120648256 + 87815641 = 10984^2 + 9371^2 .

It is a cyclic number.

It is not a de Polignac number, because 208463897 - 2⁸ = 208463641 is a prime.

It is not a weakly prime, because it can be changed into another prime (208463891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104231948 + 104231949.

It is an arithmetic number, because the mean of its divisors is an integer number (104231949).

Almost surely, 2^208463897 is an apocalyptic number.

It is an amenable number.

208463897 is a deficient number, since it is larger than the sum of its proper divisors (1).

208463897 is an equidigital number, since it uses as much as digits as its factorization.

208463897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 208463897 is about 14438.2788794233. The cubic root of 208463897 is about 592.9393651620.

The spelling of 208463897 in words is "two hundred eight million, four hundred sixty-three thousand, eight hundred ninety-seven".